US8707783B2 - Sensor housing cover and method for manufacturing such a sensor housing cover - Google Patents
Sensor housing cover and method for manufacturing such a sensor housing cover Download PDFInfo
- Publication number
- US8707783B2 US8707783B2 US13/002,130 US200913002130A US8707783B2 US 8707783 B2 US8707783 B2 US 8707783B2 US 200913002130 A US200913002130 A US 200913002130A US 8707783 B2 US8707783 B2 US 8707783B2
- Authority
- US
- United States
- Prior art keywords
- sensor housing
- plastic
- housing cover
- cover
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
Definitions
- the present invention relates to a sensor housing cover and a method for manufacturing such a housing cover.
- the sensor housing cover according to the present invention and the method according to the present invention for manufacturing such a housing cover having the features of the main claims have the advantage that the sensor housing cover is made up from only a base cover and an extrusion-coated plastic, the connection between the extrusion-coated plastic and the base cover being achieved by a positive connection via at least one opening.
- the present invention is used for an air pressure sensor, the number of material transitions is reduced, thus minimizing the probability of a leak when such an air pressure sensor is screwed to a mounting plate in the door.
- extrusion-coated plastic may also assume the function of a seal. This reduces possible problem points.
- the method according to the present invention may be implemented as a simple injection molding process. Final assembly processes are eliminated, resulting in turn in a cost reduction.
- the sensor housing cover is provided for sealing a sensor housing.
- This sensor housing cover is designed according to the present invention.
- the base cover which may be designed according to the dependent claims, has at least one opening so that the extrusion-coated plastic is joined to the base cover by a positive connection.
- the plastic suitable for the injection molding process may be designed according to the dependent claims, thus clarifying the selection of the term “extrusion coating.”
- the extrusion coating makes it possible for the first plastic to constitute at least one element of the sensor housing cover.
- a mold is provided in the manufacturing process that makes it possible to create this element and manufacture it using injection molding.
- the element is defined according to the dependent claims.
- the at least one opening may have extremely diverse embodiments depending on the sensor type used.
- the at least one opening is intended for implementing the pressure inlet channel.
- “Providing” in the method for manufacturing the sensor housing cover of the base cover means that the base cover is either manufactured or purchased, so that the base cover is already present.
- the mold may assume extremely diverse embodiments, for example a two-piece mold. It is in particular possible to provide an upper and a lower mold, which are then sealed to be leakproof. Furthermore, it is possible to provide slides that are extended until they make contact in order to define the pressure inlet channel in the injection molding process. The pressure inlet channel is normally angled. After cooling, these slide elements or slides are refracted and the upper and lower molds are opened, resulting in manufacture of the sensor housing cover.
- the base cover is essentially made of a hydrolysis-stabilized plastic.
- the plastics are chemically altered to make them resistant to alkaline solutions.
- Commercially available plastics such as PBT GF30 may be used as the housing plastic for interior applications, for example Ultradur B4300 from BASF. If the sensors are used in locations subject to the effects of weather, for example as so-called upfront sensors which are used in the front of the vehicle as crash sensors, hydrolysis-stabilized PBT GF30 may be used, for example Crastin-CE 2510 or Raditer B IRV 4008 TKB381.
- PBT polybutylene terephthalate
- the base cover is a one-piece design, which contributes to a simple manufacturing process in particular.
- a first opening is provided for a pressure inlet channel and two additional openings are provided for the positive connection, the first opening being larger than the two additional openings. If the number of additional openings is increased, this positive connection may be improved even more.
- the first plastic is silicone which is very suitable for the injection molding or extrusion coating.
- the first plastic for example, may also be a one-piece design so that only a two-piece sensor housing cover is present, which results in manufacturing and cost benefits.
- the at least one element is an inner seal to the sensor. This is in particular of advantage for the air pressure sensor.
- the at least one element may also be the pressure inlet channel, as already described above, and/or an external seal, for example to the door metal plate.
- FIG. 1 a shows a view of an air pressure sensor according to the present invention.
- FIG. 1 b shows another view of an air pressure sensor according to the present invention.
- FIG. 1 c shows another view of an air pressure sensor according to the present invention.
- FIG. 1 d shows another view of an air pressure sensor according to the present invention.
- FIG. 2 shows a sectional representation of the installed air pressure sensor.
- FIG. 3 shows a flow chart of the method according to the present invention.
- FIG. 1 a shows the sensor housing cover from below. Webs 103 and 104 and openings 101 and 102 which are used for the positive connection are visible. Silicone, which is depicted by a dashed line in contrast to the solid lines of the hydrolysis-stabilized plastic, is depicted as the extension surrounding openings 101 and 102 for the positive connection and also the definition of pressure inlet channel 100 .
- FIG. 1 b shows a side view of the sensor housing cover. Again, the base cover with the hydrolysis-stabilized plastic is depicted by the solid lines. Silicone, which is depicted by dashed lines, defines pressure inlet channel 105 and extensions 106 and 107 in order to implement the positive connection through holes 101 and 102 . Furthermore, the definition of pressure inlet channel 110 into the interior of the sensor is visible.
- FIG. 1 c shows the sensor housing cover in cross section.
- the base cover is depicted by close slanting hatched lines, the hatching being drawn from bottom left to top right, while the silicone as the extrusion-coated plastic is also depicted by slanting hatched lines but less close and drawn from bottom right to top left.
- Pressure inlet fitting 105 defined by the silicone is again visible.
- the silicone is a one-piece design in this case and it produces the positive connection with the base cover through openings 101 and 102 with material parts 108 and 109 .
- the webs of the base cover are also depicted as 103 and 104 .
- the definition of the pressure inlet channel into the interior of the sensor and the seals are also shown.
- FIG. 1 d shows a top view of the sensor housing cover. Again, the elements of the base cover are depicted by solid lines and the silicone parts by dashed lines. Pressure inlet fitting or channel 105 and sections 106 and 107 which lead through hole 102 and 101 to produce the positive connection are shown.
- FIG. 2 shows a cross section of the sensor housing cover according to the present invention in combination with the door mounting plate and the sensor element.
- the door mounting plate is depicted by elements 200 and 203 ; the silicone and the base cover are depicted by hatching as in FIG. 1 c .
- Sensor module 202 is depicted by close hatching and closes pressure inlet channel 201 .
- Sealing surfaces 207 and 208 are produced by sealing or pressing.
- the positive connection is achieved by the silicone flowing through holes 204 and 205 .
- the pressure inlet fitting is shown here as leading outward laterally into the wet chamber of the door.
- the additional part of pressure inlet channel 206 is routed in the dry chamber.
- FIG. 3 shows the method for manufacturing the sensor housing cover in a flow chart.
- the base cover is provided with at least one opening, it also being possible for the term “providing” to mean manufacturing. It is possible that, as shown in FIGS. 1 and 2 , more than one opening is present in order to make an improved positive connection possible, i.e., the silicone adhering to the base cover.
- the base cover is enclosed by a two-piece mold, specifically a top and a bottom mold. These molds are sealed so as not to leak. The molds are necessary to bring about the elements as the silicone is to be defined in the injection molding process.
- step 302 slide elements are extended until they make contact in order to make it possible to define pressure inlet channel 201 and 206 . This may, for example be done in the manner described above.
- the silicone is injected in method step 303 .
- a cool-down period from the injection is initially provided and the slide elements or slides are then retracted.
- the mold is then opened and the sensor housing cover is finished.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008040155A DE102008040155A1 (en) | 2008-07-03 | 2008-07-03 | Sensor housing cover and method of making such a sensor housing cover |
DE102008040155.2 | 2008-07-03 | ||
DE102008040155 | 2008-07-03 | ||
PCT/EP2009/055373 WO2010000526A1 (en) | 2008-07-03 | 2009-05-05 | Sensor housing cover and method for producing such a sensor housing cover |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110174071A1 US20110174071A1 (en) | 2011-07-21 |
US8707783B2 true US8707783B2 (en) | 2014-04-29 |
Family
ID=41305331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/002,130 Expired - Fee Related US8707783B2 (en) | 2008-07-03 | 2009-05-05 | Sensor housing cover and method for manufacturing such a sensor housing cover |
Country Status (6)
Country | Link |
---|---|
US (1) | US8707783B2 (en) |
EP (1) | EP2307858A1 (en) |
JP (1) | JP5449338B2 (en) |
CN (1) | CN102084222B (en) |
DE (1) | DE102008040155A1 (en) |
WO (1) | WO2010000526A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150330859A1 (en) * | 2012-12-27 | 2015-11-19 | Robert Bosch Gmbh | Method for Producing a Sensor Housing and Corresponding Sensor Housing |
US20160025586A1 (en) * | 2014-07-28 | 2016-01-28 | Ford Global Technologies, Llc | Protective Cover For Pressure Sensor Nozzle |
WO2016032696A1 (en) * | 2014-08-29 | 2016-03-03 | Trw Automotive U.S. Llc | An apparatus for dry side mounting a crash pressure sensor |
US10605686B2 (en) * | 2017-10-19 | 2020-03-31 | Veoneer Us, Inc. | Dual wet and dry combination mounting |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008054743A1 (en) * | 2008-12-16 | 2010-06-17 | Robert Bosch Gmbh | Apparatus and method for manufacturing a device |
US10591124B2 (en) | 2012-08-30 | 2020-03-17 | Sabic Global Technologies B.V. | Heat dissipating system for a light, headlamp assembly comprising the same, and method of dissipating heat |
DE102013208541A1 (en) * | 2012-12-27 | 2014-07-03 | Robert Bosch Gmbh | Detection device and method for producing a detection device |
DE102013208545A1 (en) * | 2012-12-27 | 2014-07-03 | Robert Bosch Gmbh | Detection device and method for producing a detection device |
JP6237457B2 (en) * | 2014-05-14 | 2017-11-29 | 株式会社デンソー | Pressure sensor |
US11808098B2 (en) | 2018-08-20 | 2023-11-07 | DynaEnergetics Europe GmbH | System and method to deploy and control autonomous devices |
Citations (13)
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---|---|---|---|---|
US3266312A (en) * | 1964-02-17 | 1966-08-16 | Gen Motors Corp | Level indicator sending unit |
US4312123A (en) * | 1979-03-12 | 1982-01-26 | Interpace Corporation | Methods of making high voltage electrical insulators and oil-less bushings |
JPH02107416A (en) | 1988-10-17 | 1990-04-19 | Three Bond Co Ltd | Molding method for composite article |
US5700360A (en) * | 1995-10-31 | 1997-12-23 | Chiron Diagnostics Corporation | Fluoroelastomer gasket for blood sensors |
US5872307A (en) * | 1995-07-03 | 1999-02-16 | Robert Bosch Gmbh | Vibration pick-up with pressure sleeve |
JP2002055010A (en) | 2000-05-06 | 2002-02-20 | Wabco Gmbh & Co Ohg | Electronic controller apparatus |
US6647793B2 (en) * | 1999-05-25 | 2003-11-18 | Siemens Aktiengesellschaft | Sensor module having a housing which can be fitted on a wall |
JP2005308666A (en) | 2004-04-26 | 2005-11-04 | Hitachi Ltd | Detecting part structure for pressure detector |
DE102006040665A1 (en) | 2005-08-31 | 2007-03-08 | Denso Corp., Kariya | Pressure sensor for vehicle, has first and second opening whereby first opening lead inside housing and second opening lead from outside housing, and breathable filter with air passage is provided to cover first and second opening |
DE102006018031A1 (en) | 2006-04-19 | 2007-10-25 | Robert Bosch Gmbh | Sensor arrangement for detecting impact on e.g. passenger car, has acceleration units measuring accelerations with respect to respective axes of vehicle, where acceleration and pressure units are integrated within vehicle door |
US7380458B1 (en) | 2007-03-02 | 2008-06-03 | Autoliv Asp, Inc. | Pressure sensor port |
US7568393B2 (en) * | 2006-12-11 | 2009-08-04 | Robert Bosch Gmbh | Air-pressure sensor for side-impact detection |
US7776987B2 (en) * | 2003-09-05 | 2010-08-17 | Dow Global Technologies, Inc. | Resin compositions for extrusion coating |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1313816B1 (en) * | 1999-11-03 | 2002-09-23 | Gefran Sensori S R L | HIGH PRECISION PRESSURE SENSOR DEVICE |
DE102004018869B4 (en) * | 2004-04-19 | 2008-05-08 | Siemens Ag | Device for detecting the movement of a movable component |
-
2008
- 2008-07-03 DE DE102008040155A patent/DE102008040155A1/en not_active Withdrawn
-
2009
- 2009-05-05 JP JP2011515263A patent/JP5449338B2/en not_active Expired - Fee Related
- 2009-05-05 US US13/002,130 patent/US8707783B2/en not_active Expired - Fee Related
- 2009-05-05 WO PCT/EP2009/055373 patent/WO2010000526A1/en active Application Filing
- 2009-05-05 CN CN2009801256046A patent/CN102084222B/en not_active Expired - Fee Related
- 2009-05-05 EP EP09772226A patent/EP2307858A1/en not_active Withdrawn
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3266312A (en) * | 1964-02-17 | 1966-08-16 | Gen Motors Corp | Level indicator sending unit |
US4312123A (en) * | 1979-03-12 | 1982-01-26 | Interpace Corporation | Methods of making high voltage electrical insulators and oil-less bushings |
JPH02107416A (en) | 1988-10-17 | 1990-04-19 | Three Bond Co Ltd | Molding method for composite article |
US5872307A (en) * | 1995-07-03 | 1999-02-16 | Robert Bosch Gmbh | Vibration pick-up with pressure sleeve |
US5700360A (en) * | 1995-10-31 | 1997-12-23 | Chiron Diagnostics Corporation | Fluoroelastomer gasket for blood sensors |
US6647793B2 (en) * | 1999-05-25 | 2003-11-18 | Siemens Aktiengesellschaft | Sensor module having a housing which can be fitted on a wall |
JP2002055010A (en) | 2000-05-06 | 2002-02-20 | Wabco Gmbh & Co Ohg | Electronic controller apparatus |
US7776987B2 (en) * | 2003-09-05 | 2010-08-17 | Dow Global Technologies, Inc. | Resin compositions for extrusion coating |
JP2005308666A (en) | 2004-04-26 | 2005-11-04 | Hitachi Ltd | Detecting part structure for pressure detector |
DE102006040665A1 (en) | 2005-08-31 | 2007-03-08 | Denso Corp., Kariya | Pressure sensor for vehicle, has first and second opening whereby first opening lead inside housing and second opening lead from outside housing, and breathable filter with air passage is provided to cover first and second opening |
US7454976B2 (en) * | 2005-08-31 | 2008-11-25 | Denso Corporation | Pressure sensor for a vehicle |
DE102006018031A1 (en) | 2006-04-19 | 2007-10-25 | Robert Bosch Gmbh | Sensor arrangement for detecting impact on e.g. passenger car, has acceleration units measuring accelerations with respect to respective axes of vehicle, where acceleration and pressure units are integrated within vehicle door |
US7568393B2 (en) * | 2006-12-11 | 2009-08-04 | Robert Bosch Gmbh | Air-pressure sensor for side-impact detection |
US7380458B1 (en) | 2007-03-02 | 2008-06-03 | Autoliv Asp, Inc. | Pressure sensor port |
Non-Patent Citations (1)
Title |
---|
Author: unknown, Title: Plastics, Publisher: Penton Business Media, Inc. and Penton Media, Inc. Publication: Machine Design, date: Jun. 1994, vol. 66, Issue: 12, pp. 22 including bib sheet. * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150330859A1 (en) * | 2012-12-27 | 2015-11-19 | Robert Bosch Gmbh | Method for Producing a Sensor Housing and Corresponding Sensor Housing |
US9891081B2 (en) * | 2012-12-27 | 2018-02-13 | Robert Bosch Gmbh | Method for producing a sensor housing and corresponding sensor housing |
US20160025586A1 (en) * | 2014-07-28 | 2016-01-28 | Ford Global Technologies, Llc | Protective Cover For Pressure Sensor Nozzle |
US10352796B2 (en) * | 2014-07-28 | 2019-07-16 | Ford Global Technologies, Llc | Protective cover for pressure sensor nozzle |
WO2016032696A1 (en) * | 2014-08-29 | 2016-03-03 | Trw Automotive U.S. Llc | An apparatus for dry side mounting a crash pressure sensor |
US9470595B2 (en) | 2014-08-29 | 2016-10-18 | Trw Automotive U.S. Llc | Apparatus for dry side mounting a crash pressure sensor |
US10605686B2 (en) * | 2017-10-19 | 2020-03-31 | Veoneer Us, Inc. | Dual wet and dry combination mounting |
Also Published As
Publication number | Publication date |
---|---|
WO2010000526A1 (en) | 2010-01-07 |
DE102008040155A1 (en) | 2010-01-07 |
CN102084222B (en) | 2013-03-06 |
US20110174071A1 (en) | 2011-07-21 |
JP5449338B2 (en) | 2014-03-19 |
JP2011526363A (en) | 2011-10-06 |
EP2307858A1 (en) | 2011-04-13 |
CN102084222A (en) | 2011-06-01 |
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AS | Assignment |
Owner name: ROBERT BOSCH GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LUDWIG, RONNY;REEL/FRAME:026037/0097 Effective date: 20110218 |
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STCF | Information on status: patent grant |
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Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) Year of fee payment: 4 |
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Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20220429 |